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Obsidian scalpels return to operating rooms in sharp revival
A handful of American surgeons use obsidian blades dating to Stone Age techniques. Craftsmen like Errett Callahan Jr and Payson D Sheets mold molten glass into ultra sharp blades, claiming less bleeding and scarring in eye brain and plastic surgeries.
MENTIONED IN THIS ARTICLE
Washington
United States
Errett Callahan Jr
Lynchburg
Payson D. Sheets
University of Colorado At Boulder
Sheets